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Features

Trial Trip of the Ohio

Improved Oscillating Hydraulic Motor

The Ceara Harbor Works

Electric Street Railroads

By George W. Mansfield

Apparatus for Determining Mechanically the Reaction Period of Hearing

Electrical Alarm for Pharmacies

A New Disinfector

Drawing Instrument for Accurate Work

By J. Lehrke

Barlow's Machine for Moulding Candles

A New Alkali Process

Temperature of Gas Distillation

The Largest Black Ash Furnace in the World

The Statue of Philip Lebon

A New Process for the Distillation and Concentration of Chemical Liquids

Especially Adapted to the Manufacture of Sulphate of Ammonia. Inventor, Alex. Anguscroll*

By George Anderson

The Analysis of Urine

Introduction

Liquid and Gaseous Rings

Shall we have a National Horse?

To the Editor of Scientific American Supplement

Scenes among the Extinct Volcanoes of Rhineland

The “Meteorologiske Institut” at Upsala, and Cloud Measurements

Notes of a Recent Visit to some of the Petroleum-Producing Territories of the United States and Canada

Canadian Petroleum

By Boverton Redwood

Trees from a Sanitary Aspect

By Charles Roberts

Solidification by Pressure

Building Plans and Specifications

Departments

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September 17, 1887

Think Outside the Gift Box